.header {
    width: 100%;
    height: 50px;
    background-color: #323232;
}

.w {
    width: 600px;
    margin: 0 auto;
}

.label {
    float: left;
    width: 100px;
    line-height: 50px;
    color: #DDD;
    font-size: 24px;
    cursor: pointer;
}

.input {
    float: right;
    width: 60%;
    height: 24px;
    margin-top: 12px;
    text-indent: 10px;
    border-radius: 5px;
    box-shadow: 0 1px 0 rgba(255,255,255,0.24), 0 1px 6px rgba(0,0,0,0.45) inset;
    border: none;
    color: #ccc;
}
.input:focus {
    outline: 0;
}

.btn {
    float: right;
    height: 24px;
    width: 24px;
    margin-top: 12px;
    margin-left: 8px;
    border-radius: 50%;
    border: 2px solid #cdcdcd;
    background-color: #323232;
    color: #fff;
    font-size: 24px;
    line-height: 20px;
    cursor: pointer;
}
.btn:hover {
    color: skyblue;
    border: 2px solid skyblue;
}